1.
Simarmata HH, Hasni H, Indrayani I. Meningkatkan Keaktifan Diskusi Siswa Melalui Metode Problem Based Learning di Kelas VII SMP Negeri 2 Bandar Sumatera Utara. JP3 [Internet]. 2022May1 [cited 2025Jun.21];4(2):310-9. Available from: https://ejournal-jp3.com/index.php/Pendidikan/article/view/416